Nailed to the sky actually places the target so far from the surface of the world and at such a speed that it keeps missing the surface as it falls back, so it enters an eternal orbit. Unless the target can magically fly or has some other form of non-physical propulsion available, the target is stuck until someone else rescues it. Even if the target can fly, the surface is 2 to 4 hours away, assuming a fly spell, which allows a maximum speed of 720 feet per round while descending. The target may not survive that long. Depending on the world where nailed to the sky is cast, conditions so far from its surface may be deadly. Deleterious effects include scorching heat, cold, and vacuum. Targets subject to these conditions take 2d6 points of damage each from heat or cold and 1d4 points of damage from the vacuum each round. The target immediately begins to suffocate.